Unit 6 When was it invented（A卷•夯实基础）-2021-2022学年九年级英语同步单元AB卷（人教版）（原卷版）

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Unit 6 When was it invented?测试卷

（A卷基础篇）

【人教版】

学校：__________班级：__________姓名：_________ 考号：___________

温馨提示：

本试卷共分第Ⅰ卷和第Ⅱ卷两部分，第Ⅰ卷为客观题；第Ⅱ卷为主观题；满分为 100 分，考试时间为

100 分钟。

请同学们将【答案】写在答题卡上，务必注意你的书写。

选择题非选择题总分

题号 Ⅰ Ⅱ Ⅲ Ⅳ Ⅴ Ⅵ Ⅶ

得分

第I卷（客观题共 55 分）

Ⅰ.单项选择（15）

1.The dress is in a special . It only sells in our store. Try it one and you’ll like it.

A.list B.brand C.condition D.style

2.（2020 江苏无锡）Think twice and make the decision. Else can do it for you.

A.Somebody B.Everybody C.Anybody D.Nobody

3.（2020 四川乐山）Your idea good. Let’s give it a try and see if it will work.

A.sounds B.smells C.looks

4.（2020 重庆 A卷）Another bridge over the Jialing River last year.

A.builds B.built C.is built D.was built

5. （2021 山东济南槐荫区期中）To encourage students to discuss in class, the teacher divided the class

several groups.

A.into B.with C.for D.by

6.The woman all the things she had to remember on the paper to make them look clear.

A.processed B.reviewed C.listed D.checked

7.—Another good idea! And we could each call up ten people and ask them to come.

—Hey, we’re a lot of good ideas, aren’t we?

A.getting along with B.coming up with

C.catching up with D.doing well in

8.（2020 黑龙江哈尔滨）—Who do you admire most, Yang Ming?

—Zhong Nanshan. Not only I but also my classmates him.

A.look forward to B.look up to C.are up to

9.（2021 北京四中期中）Our school has a long history and it in 1907.

A.built B.build C.was built D.is built

10.My teacher often encourages me more English books and magazines.

A.read B.reads C.to read D.reading

11.（2021 安徽芜湖十月月考） Not only my parents but also my younger sister crazy about the football

match.

A.is B.are C.am D.be

12. （2020 福建）On video, Doctor Zhong Nanshan teenagers to study hard in the first lesson of this term.

A. allowed B.trained C.encouraged

13.（2020 甘孜）He felt tired, so he stopped a rest under the tree.

A.having B.have C.to have

14.（益阳）The number of people in the city about seven million now.

A.are B.has C.is

15.（2021 江苏扬州江都区二模）—Thanks for listening to my problems and giving me your advice.

— .

A.With pleasure B.Yes, please

C.That’s right D.It is my pleasure

II.完形填空（10 分）

Have you ever licked（舔）your fingers after you finish eating a tasty treat? A (16) named Constantin

Fahlberg did! He invented saccharin（糖精）by licking his fingers. He invented it by accident.

In 1879, Constantin Fahlberg (17) a project at Johns Hopkins University to find users for coal tar （煤焦

油）. After a day at work in the lab, Fahlberg went home for supper. His wife had (18) some rolls（小圆面

包）to go along with the meal. After Fahlberg took a bite of a roll, he thought it (19) especially sweet. He asked

his wife if she had added anything to make the rolls (20) . She told him she hadn’t. She thought the rolls tasted

the same as usual.

Fahlberg wondered (21) the extra sweetness came from. He looked at his hands (22) . Then he laughed.

He realized that he (23) to wash his hands before eating the rolls. His hands still had residues （残留物）from

his experiments with coal tar. He thought that the chemicals on his (24) might be the source of the sweetness.

Later on, he used the residues to (25) a new material and it was called “saccharin”. It is a kind of

ingredient and cam make meals sweeter.

16. A.historian B.physicist C.musician D.chemist

17. A.took up B.put up C.gave up D.stayed up

18. A.sold B.prepared C.boiled D.thrown

19. A.smelt B.sounded C.tasted D.looked

20. A.bitter B.sour C.sweet D.spicy

21. A.what B.where C.when D.how

22. A.loudly B.carefully C.quietly D.carelessly

23. A.borrowed B.lent C.remembered D.forgot

24. A.face B.mouth C.hands D.arms

25. A.develop B.remain C.avoid D.complete

Ⅲ.阅读理解（20）

（2020 烟台）

One day, Anna Du was walking along Castle Island’s beach. She found there were lots of plastic pieces in the

sea and some were too small to pick up. She begun to think about how to solve the problem.

First, she did a survey. The result showed there were already 150 million tons of plastic in the sea, and every

year there would be another 8 million tons. She realized something must be done. So she decided to invent a robot

that could work under water. She tried again and again. At last her ROV came out. It could move through water and

pick up plastic pieces, especially the tiny ones.

With this ROV, Anna Du took part in the Broadcom Masters competition which is one of the top STEM

competitions. It’s for young students around the world. This year, more than 5,000 students were interested in the

competition, but only a few got the chance. Anna Du’s ROV caught a lot of attention. It had a camera with three

different kinds of lights which could find plastic pieces easily. Dana Yoerger, an expert, said, “The ROV is nicely

done for a 12-year-old girl. It’s very clever.”

In fact, Anna Du is always learning to solve the world problems and her parents are always supporting her. At

the age of five, she began to go to workshops to learn engineering skills. When she was asked about the future plan,

she said, “I want to be an engineer because I like building things. I think many world problems can be solved with

new inventions. Right now, I’m just caring about plastic problems because there is still a long way to go.”

26.What did Anna Du find in her survey?

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